sta169

Statistics I

Exam Preparation: 20 hours
Deep Understanding: 60 hours
Subject Code STA 169
Credit Hours 3 Hours
Nature Theory + Lab
Full Marks 60 + 20 + 20
Pass Marks 24 + 8 + 8
Description

This course contains basics of statistics, descriptive statistics, probability, sampling, random variables and mathematical expectations, probability distribution, correlation and regression.

Objective

Impart knowledge of descriptive statistics, correlation, regression, and sampling,Provide theoretical and applied knowledge of probability and probability distributions

Course Contents

Introduction

4 Hours

Basic concept of statistics, Application of statistics in Computer Science & IT, Scales of measurement, Variables, Types of data, Notion of a statistical population

Descriptive Statistics

6 Hours

Measures of central tendency, Measures of dispersion, Measures of skewness, Measures of kurtosis, Moments, Stem and leaf display, Five number summary, Box plot, Problems and illustrative examples related to Computer Science and IT

Introduction to Probability

8 Hours

Concepts of probability, Definitions of probability, Laws of probability, Bayes theorem, Prior and posterior probabilities, Problems and illustrative examples related to Computer Science and IT

Sampling

3 Hours

Definitions of population, Sample survey vs. census survey, Sampling error and non-sampling error, Types of sampling

Random Variables and Mathematical Expectation

5 Hours

Concept of a random variable, Types of random variables, Probability distribution of a random variable, Mathematical expectation of a random variable, Addition and multiplicative theorems of expectation, Problems and illustrative examples related to Computer Science and IT

Probability Distributions

12 Hours

Probability distribution function, Joint probability distribution of two random variables, Discrete distributions: Bernoulli trial, Binomial, and Poisson distributions, Continuous distributions: Normal distribution, Standardization of normal distribution, Normal distribution as an approximation of Binomial and Poisson distribution, Exponential and Gamma distributions, Problems and illustrative examples related to Computer Science and IT

Correlation and Linear Regression

7 Hours

Bivariate data, Bivariate frequency distribution, Correlation between two variables, Karl Pearson’s coefficient of correlation (r), Spearman’s rank correlation, Regression Analysis: Fitting of lines of regression by the least squares method, Coefficient of determination, Problems and illustrative examples related to Computer Science and IT

Laboratory Works

Use of statistical software such as Microsoft Excel, SPSS, STATA for practical problems,Computation of measures of central tendency (ungrouped and grouped data),Computation of measures of dispersion and coefficient of variation,Measures of skewness and kurtosis using method of moments and Box & whisker plot,Scatter diagram and correlation coefficient computation,Fitting of lines of regression and verification with computer output,Conditional probability and Bayes theorem,Obtaining descriptive statistics of probability distributions,Fitting probability distributions in real data (Binomial, Poisson, Normal)

Books

Textbooks

Michael Baron (2013): Probability and Statistics for Computer Scientists, 2nd Ed., CRC Press, Taylor & Francis Group
Ronald E. Walpole, Raymond H. Myers, Sharon L. Myers, & Keying Ye (2012): Probability & Statistics for Engineers & Scientists, 9th Ed., Prentice Hall

Reference Books

Douglas C. Montgomery & George C. Runger (2003): Applied Statistics and Probability for Engineers, 3rd Ed., John Wiley & Sons, Inc.
Richard A. Johnson (2001): Probability and Statistics for Engineers, 6th Ed., Pearson Education, India